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公开(公告)号：US20230333208A1
公开(公告)日：2023-10-19
申请号：US18193716
申请日：2023-03-31
Applicant: Infineon Technologies AG
Inventor： Mayeul Jeannin , Farhan Bin Khalid , Dian Tresna Nugraha
CPC classification number: G01S7/4008 , G01S7/40 , G01S7/356 , G01S13/584
Abstract: A radar system has a plurality of radar transmitters and at least one radar receiver, each radar transmitter having a transmitter adjuster for tuning the output of the respective transmitter, for example tuning the phase of each of a plurality of constellation points of a constellation. The radar system may operate in a calibration cycle by transmitting from a single radar transmitter using the transmitter adjuster, obtaining an estimate of the error in the transmitter adjuster and adjusting the transmitter adjuster according to the estimate of the error. In an operation cycle the radar system may transmit using the plurality of radar transmitters, the signal being transmitter from each radar transmitter being tuned using the transmitter adjuster. Calibration cycles are interspersed between operation cycles during operation.
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公开(公告)号：US20240385287A1
公开(公告)日：2024-11-21
申请号：US18501150
申请日：2023-11-03
Applicant: Infineon Technologies AG
Inventor： Mayeul Jeannin , Dian Tresna Nugraha , Farhan Bin Khalid , Andre Roger
Abstract: Systems, methods, and circuitries are disclosed for compressing radar data. In one example, a method includes receiving respective radar signals from a plurality of antennas; applying respective phase shifts to the respective received radar signals or to respective radar data derived from the respective received radar signals to generate respective coded radar signals or respective coded radar data; and combining the respective coded radar signals or the respective coded radar data to generate a compressed radar signal or compressed radar data
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公开(公告)号：US20230096861A1
公开(公告)日：2023-03-30
申请号：US17948262
申请日：2022-09-20
Applicant: Infineon Technologies AG
Inventor： Markus Bichl , Mayeul Jeannin
Abstract: A circuit includes a signal processing unit to generate a radar map represented by an array with a first index and a second index, and a peak detection unit to identify potential targets in the radar map. Within the peak detection unit, a first peak detection sub-unit scans the radar map along the first index and stores a first detection bitmap that identifies peaks as a function of the first index, and a second peak detection sub-unit scans the radar map along the second index and outputs a second detection bitmap that identifies peaks as a function of the second index. The first detection bitmap and the second detection bitmap identify the peaks using a single bit. A hardware accelerator processes individual bits of the first detection bitmap and of the second detection bitmap.
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公开(公告)号：US12189052B2
公开(公告)日：2025-01-07
申请号：US17324487
申请日：2021-05-19
Applicant: Infineon Technologies AG
Inventor： Andre Roger , Simon Achatz , Dian Tresna Nugraha , Ljudmil Anastasov , Markus Bichl , Mayeul Jeannin , Farhan Bin Khalid
IPC: G01S7/35 , G01S7/288 , G01S13/44 , G01S13/536 , G01S13/58 , G01S13/931
Abstract: It is suggested to process radar signals including (i) determining a variation of at least one radar parameter provided from at least one radar device; (ii) determining an estimated value of at least one radar parameter from an error compensation vector; and (iii) determining a safety condition based on the variation and the estimated value for the respective radar parameter.
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公开(公告)号：US20230384418A1
公开(公告)日：2023-11-30
申请号：US17828151
申请日：2022-05-31
Applicant: Infineon Technologies AG
Inventor： Mayeul Jeannin , Maximilian Eschbaumer , Farhan Bin Khalid , Dian Tresna Nugraha , Andre Roger
Abstract: Systems, methods, and circuitries are provided for calibrating a radar system to compensate for a channel offset. In one example, a method is disclosed for processing radar signals with a radar device. The method includes including receiving respective radar signals from respective virtual receive channels, wherein each virtual receive channel corresponds to a combination of a transmit antenna element and a receive antenna element of an antenna element array. Respective received radar data is generated from the respective radar signals and the radar date is processed to identify one or more stationary objects. Based on the radar data, an estimated radar device motion relative to the one or more stationary objects is determined. A difference between the estimated radar device motion and an expected motion of the radar device is determined and a correction vector is determined based on the difference. The correction vector to is applied to subsequent radar data.
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Patent Agency Ranking
公开(公告)号：US20210364622A1
公开(公告)日：2021-11-25
申请号：US17324487
申请日：2021-05-19
Applicant: Infineon Technologies AG
Inventor： Andre Roger , Simon Achatz , Dian Tresna Nugraha , Ljudmil Anastasov , Markus Bichl , Mayeul Jeannin , Farhan Bin Khalid
IPC: G01S13/44 , G01S7/288 , G01S13/931
Abstract: It is suggested to process radar signals including (i) determining a variation of at least one radar parameter provided from at least one radar device; (ii) determining an estimated value of at least one radar parameter from an error compensation vector; and (iii) determining a safety condition based on the variation and the estimated value for the respective radar parameter.
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公开(公告)号：US20240248171A1
公开(公告)日：2024-07-25
申请号：US18413280
申请日：2024-01-16
Applicant: Infineon Technologies AG
Inventor： Mayeul Jeannin , Farhan Bin Khalid , Dian Tresna Nugraha , Andre Roger
CPC classification number: G01S7/4008 , G01S7/354 , G01S7/356
Abstract: A method for calibrating a transmitter of a plurality of transmitters of a radar system is provided. The method includes setting the radar transmitter to be calibrated to a first Doppler Division Multiplexing (DDM) pattern and associating each of the other transmitters in the plurality with a respective second DDM pattern. A target is detected by performing radar detection with the plurality of transmitters, wherein the transmitter is operated with the first DDM pattern and each of the other transmitters is operated with its associated second DDM pattern, extracting Doppler Fourier transform coefficients for a Doppler spectrum peak corresponding to the target and for spurs associated with the peak, applying an inverse discrete Fourier transform to the extracted Doppler Fourier transform coefficients, detecting a phase error of the transmitter using a result of the inverse discrete Fourier transform and calibrating the transmitter according to the detected phase error.
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公开(公告)号：US11899094B2
公开(公告)日：2024-02-13
申请号：US17587286
申请日：2022-01-28
Applicant: Infineon Technologies AG
Inventor： Mayeul Jeannin , Farhan Bin Khalid , Dian Tresna Nugraha , Andre Roger
IPC: G01S13/58
CPC classification number: G01S13/58
Abstract: Systems, methods, and circuitries are disclosed for compressing radar data. In one example, a method includes storing radar data in a memory, the radar data being stored in a data cube having a slow-time dimension, a fast-time dimension, and a channel dimension. The data cube is divided into one or more zones. For each zone a number of data matrices is selected based on a compression factor. Sets of data matrices containing the number of data matrices are formed and, for each set of data matrices, for each data matrix, the data vectors are coded to generate a coded data matrix. A coding for data vectors in a data matrix is the same and a coding for different data matrices is different. The coded data matrices are combined to generate a compressed data matrix for the zone and the compressed data matrices for the one or more zones are stored.
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公开(公告)号：US20230243951A1
公开(公告)日：2023-08-03
申请号：US17587286
申请日：2022-01-28
Applicant: Infineon Technologies AG
Inventor： Mayeul Jeannin , Farhan Bin Khalid , Dian Tresna Nugraha , Andre Roger
IPC: G01S13/58
CPC classification number: G01S13/58
Abstract: Systems, methods, and circuitries are disclosed for compressing radar data. In one example, a method includes storing radar data in a memory, the radar data being stored in a data cube having a slow-time dimension, a fast-time dimension, and a channel dimension. The data cube is divided into one or more zones. For each zone a number of data matrices is selected based on a compression factor. Sets of data matrices containing the number of data matrices are formed and, for each set of data matrices, for each data matrix, the data vectors are coded to generate a coded data matrix. A coding for data vectors in a data matrix is the same and a coding for different data matrices is different. The coded data matrices are combined to generate a compressed data matrix for the zone and the compressed data matrices for the one or more zones are stored.
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公开(公告)号：US20240369679A1
公开(公告)日：2024-11-07
申请号：US18650240
申请日：2024-04-30
Applicant: Infineon Technologies AG
Inventor： Mayeul Jeannin , Dian Tresna Nugraha , Farhan Bin Khalid
Abstract: A radar system transmits using a number of transmitters with respective different phase shift keying schemes, the order of at least one of the different phase shift keying schemes not being a power of two. A radar system may carry out a method which may include correcting for angle estimation distortion resulting from phase components injected as a result of the at least one of the different phase shift keying schemes not being a power of two. The method may further include correcting for rotating phases in the values of the transformed data cube resulting from the order of at least one of the different phase shift keying schemes not being a power of two. Amplitude distortion caused by inter-bin misalignment of the ODDM shifted peaks in the Doppler FFT spectrum may be avoided.
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